April 2026 - Volume 84, Issue 4

The April 2026 issue of Materials Evaluation features automated ultrasonic testing for pipeline inspection, terahertz-based thermal barrier coating evaluation, a new ME Vault series revisiting historic NDT articles, ASNT topical conference previews, and advocacy updates from Capitol Hill.

Materials Evaluation April 2026 cover

TBC thickness measurement using THz-TDS

Members

Aerospace, IR

NDE of Thermal Barrier Coating Thickness Based on THz-TDS

Automated ultrasonic testing for pipeline inspection

Members

Energy, UT

Using Automated Ultrasonic Testing for Pipeline Girth Weld Inspection

The Vault: 1943 X-ray technique chart article

Aerospace, RT

Opening the Vault: A Method for Compiling an Accurate X-Ray Technique Chart (1943)

ASNT Topical Conferences 2026

Topical Conferences for 2026

ASNT Skilled Trades Coalition advocacy on Capitol Hill

Collaboration in Action: Skilled Trades Coalition on Capitol Hill

ASTM E18-25 Rockwell hardness testing standards

Members

Manufacturing, UT

ASTM E18-25: Setting the Benchmark for Hardness Testing across Industries

Chat Window Trigger